Laura Buxton released a helium filled balloon during celebrations for her grandparents’ gold wedding anniversary in Blurton, Staffordshire, in June 2001. Attached to the balloon was her name and address and a note asking the finder to write back. Ten days later she received a reply. The balloon had been found by another Laura Buxton in the garden hedge of her home in Pewsey, Wiltshire, 140 miles away. Both Lauras were ages 10 and both had three year old black Labradors, matching guinea pigs, and a rabbit.
this story and a great exploration of randomness on radio lab’s Stochasticity episode.